The purpose of this study was to assess whether large femoral heads (36-38 mm) improve the range of motion in total hip arthroplasty compared to standard (28-32 mm) femoral heads in the presence of optimal and non-optimal cup positioning. A mathematical model of the hip joint was generated by using a laser scan of a dried cadaveric hip. The range of motion was assessed with a cup inclination and anteversion of reference and with non-optimal cup positions. Large femoral heads increased the range of motion, compared to the 28-mm femoral head, in the presence of a hip prosthesis correctly implanted and even more so in the presence of non-optimal cup positioning. However, with respect to the 32-mm femoral head, large femoral heads showed limited benefits both in the presence of optimal and non-optimal cup positioning.

Do large femoral heads reduce the risks of impingement in total hip arthroplasty with optimal and non-optimal cup positioning? / Cinotti, Gianluca; Niccolo, Lucioli; Andrea, Malagoli; Carlo Calderoli Ferdinando, Cassese. - In: INTERNATIONAL ORTHOPAEDICS. - ISSN 0341-2695. - STAMPA. - 35:3(2011), pp. 317-323. [10.1007/s00264-010-0954-3]

Do large femoral heads reduce the risks of impingement in total hip arthroplasty with optimal and non-optimal cup positioning?

CINOTTI, Gianluca;
2011

Abstract

The purpose of this study was to assess whether large femoral heads (36-38 mm) improve the range of motion in total hip arthroplasty compared to standard (28-32 mm) femoral heads in the presence of optimal and non-optimal cup positioning. A mathematical model of the hip joint was generated by using a laser scan of a dried cadaveric hip. The range of motion was assessed with a cup inclination and anteversion of reference and with non-optimal cup positions. Large femoral heads increased the range of motion, compared to the 28-mm femoral head, in the presence of a hip prosthesis correctly implanted and even more so in the presence of non-optimal cup positioning. However, with respect to the 32-mm femoral head, large femoral heads showed limited benefits both in the presence of optimal and non-optimal cup positioning.
2011
design; diameter; dislocation; liner; motion; range; replacement; size
01 Pubblicazione su rivista::01a Articolo in rivista
Do large femoral heads reduce the risks of impingement in total hip arthroplasty with optimal and non-optimal cup positioning? / Cinotti, Gianluca; Niccolo, Lucioli; Andrea, Malagoli; Carlo Calderoli Ferdinando, Cassese. - In: INTERNATIONAL ORTHOPAEDICS. - ISSN 0341-2695. - STAMPA. - 35:3(2011), pp. 317-323. [10.1007/s00264-010-0954-3]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/105242
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